WOpen Hardware and Design Alliance
WOpen-source hardware
WAdafruit Industries
WAXIOM (camera)
WCopenhagen Suborbitals
WLimor Fried
WHardware Freedom Day
WInMoov
WIOIO
WJournal of Open Hardware
WLibrePilot
WLittleBits
WLyman filament extruder
WMultimachine
WNovena (computing platform)
WOpen Architecture Network
WOpen Compute Project
WOpen-design movement
WOpen Firmware
WOpen Graphics Project
WOpen-Source Lab (book)
WOpen-source ventilator
WOpendesk
WOpenROV
WParallax Propeller
WPurism (company)
WRepRap project
WSatNOGS
WSimputer
WSparkFun Electronics
WWikiHouse